The enzymes involved in alcohol metabolism include mainly alcohol dehydrogenase(ADH), aldehyde dehydrogenase(ALDH) and cytochrome P450 2E1(CYP2E1), which all appear to be polymorphic.

• 体内参与乙醇代谢的酶主要有乙醇脱氢酶(ADH)、乙醛脱氢酶(ALDH)和细胞色素P450-2E1(CYP2E1)，它们均存在基因多态现象。